Leviticus 22:7

5Or whosoever toucheth any creeping thing, whereby he may be made unclean, or a man of whom he may take uncleanness, whatsoever uncleanness he hath;

6The soul which hath touched any such shall be unclean until even, and shall not eat of the holy things, unless he wash his flesh with water.

7And when the sun is down, he shall be clean, and shall afterward eat of the holy things; because it is his food.

8That which dieth of itself, or is torn with beasts, he shall not eat to defile himself therewith; I am the LORD.

9They shall therefore keep mine ordinance, lest they bear sin for it, and die therefore, if they profane it: I the LORD do sanctify them.